Xiamen Rongmai Electrical Equipment Co., Ltd.
| Payment Terms | TT |
| Function | Combines multiple solar panel strings into a single output |
| Operating Temperature | -40°C to +85°C |
| Certifications | UL, TUV, CE, RoHS |
| Application | Used in photovoltaic power systems for string combining and protection |
| Grounding | Integrated grounding terminal |
| Enclosure Material | IP65 rated, UV resistant plastic or metal |
| Maximum Current | 30A / 60A / 100A |
| Protection | Overcurrent protection, Surge protection, Reverse polarity protection |
| Place of Origin | XiaMem,China |
View Detail Information
Explore similar products
Thickened Durable Multimedia Custom Power Distribution Box For Construction
Ventilated Waterproof Custom Power Distribution Box Heat Dissipation Industrial
Corrosion Resistant Custom Power Distribution Box Ip66 Electrical Enclosure For
Wall Mounted Construction Site Custom Power Distribution Box For Circuit
Product Specification
| Payment Terms | TT | Function | Combines multiple solar panel strings into a single output |
| Operating Temperature | -40°C to +85°C | Certifications | UL, TUV, CE, RoHS |
| Application | Used in photovoltaic power systems for string combining and protection | Grounding | Integrated grounding terminal |
| Enclosure Material | IP65 rated, UV resistant plastic or metal | Maximum Current | 30A / 60A / 100A |
| Protection | Overcurrent protection, Surge protection, Reverse polarity protection | Place of Origin | XiaMem,China |
| High Light | Safe Solar Combiner Box ，Overload Protection Solar Combiner Box ，Overcurrent Protection Solar Combiner Box | ||
Optimize and safeguard your photovoltaic array with our professional-grade Safe Solar Combiner Box. Engineered specifically for residential, commercial, and off-grid solar systems, this high-performance combiner box centralizes the output of multiple solar string inputs into a single master output.
Equipped with cutting-edge Overload and Overcurrent Protection Functions, this unit acts as an impenetrable shield for your expensive solar inverters and charge controllers. By mitigating risks associated with atmospheric surges, short circuits, and current overloads, it ensures maximum energy yield, operational continuity, and compliance with international solar safety standards.
| Parameter | Specifications & Standards |
|---|---|
| Product Category | Photovoltaic (PV) String Combiner Box |
| Max. DC Voltage | 500V / 1000V DC Options Available |
| Number of PV Strings | 4-String / 6-String / 8-String Configurations |
| Max. Current Per String | 15A / 20A / 32A |
| Protection Functions | Overcurrent, Overload, Short-Circuit, Surge Protection |
| Surge Protective Device (SPD) | Type 2 DC SPD (Imax = 40kA) |
| DC Circuit Breaker | High-Voltage Air Circuit Breaker with Overload Trip |
| Enclosure Protection Rating | IP65 / IP66 Waterproof & Dustproof |
| Material Composition | High-Impact Polycarbonate / ABS Alloy (UV-Stabilized) |
| Certifications | CE, RoHS, TUV Certified, ISO9001 |
Each solar string input is isolated and protected by dedicated high-voltage DC fuses. If an individual solar panel array experiences a fault or current backfeed, the fuse safely interrupts the circuit within milliseconds. This prevents localized overcurrent issues from cascading and damaging adjacent panels or wiring.
The master output is regulated by a heavy-duty DC circuit breaker designed specifically for solar infrastructure. Featuring an automatic thermal-magnetic trip mechanism, it instantaneously cuts off power to the inverter if system-wide current or load exceeds rated safety thresholds. It also serves as a manual safety isolation switch during system maintenance.
Equipped with a professional, modular DC Surge Protective Device (SPD). This module safely diverts high-voltage transients—such as indirect lightning strikes or grid fluctuations—directly to the ground line (Imax up to 40kA), shielding sensitive internal components and downstream inverters from catastrophic voltage spikes.
Built to endure harsh outdoor rooftop or field environments. The UV-stabilized, flame-retardant polymer enclosure completely seals out torrential rain, wind-blown dust, and humidity. It features integrated waterproof cable glands to maintain structural sealing integrity after wiring installation.
A: When combining three or more solar strings in parallel, a short circuit in one string can pull the full current of all other strings into the fault zone. Overcurrent protection (fuses) isolates the faulty string, saving your wiring from melting and eliminating fire hazards.
A: We manufacture distinct configurations optimized for different voltage thresholds (typically 500V DC for residential and 1000V DC for commercial applications). Please select the correct voltage rating matching your solar inverter's maximum input window.
A: Yes. A heavy-duty, high-conductivity brass grounding terminal block is pre-installed. For the surge protection device to function correctly, this terminal must be tied to an appropriate earth-ground rod.
Company Details
Business Type:
Manufacturer,Seller,Exporter,Trading Company,Distributor/Wholesaler
Year Established:
2017
Employee Number:
100~500
Ecer Certification：
Verified Supplier
Xiamen Rongmai Electric: A Comprehensive Business Upgrade and Transformation! We specialize in the R&D and manufacturing of a full range of power distribution boxes, including temporary construction site units, residential lighting panels, power distribution units, fire control cabinets, and ... Xiamen Rongmai Electric: A Comprehensive Business Upgrade and Transformation! We specialize in the R&D and manufacturing of a full range of power distribution boxes, including temporary construction site units, residential lighting panels, power distribution units, fire control cabinets, and ...
Get in touch with us
Leave a Message, we will call you back quickly!